The strongest relationships are built on efforts couples make every day, not grand gestures for Valentine's Day, says Kale Monk.

Valentine's Day can be a pleasant or painful reminder of the relationships in your life. An expert has advice on how to approach the day.

An optimistic partner may stave off the risk factors leading to Alzheimer's disease, dementia, and cognitive decline as you grow old together.

Marijuana can bring certain couples closer together, researchers say.